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Svetlanka [38]
2 years ago
7

Am I correct? If not please explain and which one!? THANK SO MUCH ❤️

Mathematics
1 answer:
Rzqust [24]2 years ago
6 0

Answer:

No, your answer is incorrect.

simplify the question that would be the last one D.

Step-by-step explanation:

if this helped you please mark brainliest <3

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(01.03)
Fittoniya [83]

Answer:

x=7 satisfy the equation, so it is the solution.

x=4 doesn't satisfy the equation so it is extraneous solution.

Step-by-step explanation:

The equation given is:

\sqrt{x-3}+5=x

Adding -5 on both sides

\sqrt{x-3}=x-5

Taking square on both sides

(\sqrt{x-3})^2=(x-5)^2

Now solving

x-3 = x^2 -10x+25\\Arranging\\x^2-10x-x+3+25=0\\x^2-11x+28=0\\Factorizingx^2-7x-4x+28=0\\\\x(x-7)-4(x-7)=0\\(x-4)(x-7)=0\\x-4=0 \,\,and\,\, x-7=0\\x=4 \,\,and\,\, x=7

Verifying solutions:

Putting x=4 in the equation

\sqrt{x-3}+5=x

\sqrt{4-3}+5=4

\sqrt{1}+5=4

1+5=4

6\neq 4

So, x=4 doesn't satisfy the equation so it is extraneous solution.

Now Putting x=7 and verifying

\sqrt{x-3}+5=x

\sqrt{7-3}+5=7

\sqrt{4}+5=7

2+5=7

7=7

x=7 satisfy the equation, so it is the solution.

3 0
3 years ago
What is the value of x?
iragen [17]

Answer:

80 degrees

Step-by-step explanation:

A triangle has 180 degrees so you have to add up the two angles with measurements you know (70 + 30= 100) and subtract 100 from 180

7 0
3 years ago
Read 2 more answers
-2(-5 - 2) + (2)/(3)
ikadub [295]

Answer:

14 2/3 or 14.6 repeting

Step-by-step explanation:

6 0
3 years ago
A company plans to ship 2,000 packages of chocolate. The company randomly selecta
a_sh-v [17]

Answer:

100 packages

Step-by-step explanation:

If 5 packages out of 100 are incorrect , then there's a 1/20 chance that a package has an incorrect weight

Therefore out of 2000

it's

\frac{1}{20}  \times 2000 = 100

Hope it helps

Sorry I'm not really good at explaining

7 0
1 year ago
Write an equation in slope intercept form for the line that passes through 3,4 and is parallel to y=-2x-2
kow [346]
Y = -2x - 2. Slope here is -2. A parallel line will have the same slope.

y = mx + b
slope(m) = -2
(3,4)...x = 3 and y = 4
now we sub and find b, the y int
4 = -2(3) + b
4 = - 6 + b
4 + 6 = b
10 = b

so ur parallel equation is : y = -2x + 10
4 0
3 years ago
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